Shoe upper



FIG. 1 is a top view of a shoe showing my new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a front elevational view;

FIG. 5 is a rear elevational view.

The broken line showing of a shoe is for illustrating purposes only and forms no part of the claimed design; 

The ornamental design for a shoe upper, as shown and described. 